氢化物—原子荧光光谱法联合测定水中的砷和汞

本文利用氢化物原子荧光光谱法(HG-AFS)联合测定水中的砷和汞,对灯电流、原子化器高度、载气流量、干扰离子、酸介质以及酸度等一系列测定条件进行了研究。实验结果表明:该法具有操作简单、快速,干扰少、灵活度高等优点,在最优测定条件下,本法砷、汞检出限分别为0.07μg·L^-1和0.009μg·L^-1,线性范围为0～80.0μg·L^-1及0～8.00μg·L^-1。

Determination of arsenic and mercury in water by hydride generation - atom fluorcscence spectrometry

In this paper, hydride generation-atom fluorescence spectrometry method was used to analyze arsenic and mercury in water. A series of analytical conditions were studied, including lamp current, height of atomic part, gas flow, interference ions, acidic medium and acidity. The results show that the two channels HG-AFS determination of arsenic mercury has the advantages of simple, rapid, less noise and high sensitivity. The determination limits of arsenic and mercury had been proved to be 0.07 μg·L^-1 and 0.009μg·L^-1, and the linear ranges to be(0-80.0)μg·L^-1 and(0-8.00)μg·L^-1 under optimum conditions.